Struct zenoh::value::Value

#[non_exhaustive]
pub struct Value {
    pub payload: ZBuf,
    pub encoding: Encoding,
}

A zenoh Value.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

payload: ZBuf

The payload of this Value.

encoding: Encoding

An encoding description indicating how the associated payload is encoded.

Implementations

impl Value

pub fn new(payload: ZBuf) -> Self

Creates a new zenoh Value.

pub fn empty() -> Self

Creates an empty Value.

Examples found in repository

src/publication.rs (line 313)

    pub fn delete(&self) -> Publication {
        self._write(SampleKind::Delete, Value::empty())
    }

src/session.rs (line 729)

    pub fn delete<'a, 'b: 'a, TryIntoKeyExpr>(
        &'a self,
        key_expr: TryIntoKeyExpr,
    ) -> DeleteBuilder<'a, 'b>
    where
        TryIntoKeyExpr: TryInto<KeyExpr<'b>>,
        <TryIntoKeyExpr as TryInto<KeyExpr<'b>>>::Error: Into<zenoh_core::Error>,
    {
        PutBuilder {
            publisher: self.declare_publisher(key_expr),
            value: Value::empty(),
            kind: SampleKind::Delete,
        }
    }

pub fn encoding(self, encoding: Encoding) -> Self

Sets the encoding of this zenoh Value.

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Value

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Value

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&[u8]> for Value

fn from(buf: &[u8]) -> Self

Converts to this type from the input type.

impl From<&Value> for Value

fn from(json: &Value) -> Self

Converts to this type from the input type.

impl From<&str> for Value

fn from(s: &str) -> Self

Converts to this type from the input type.

impl From<Properties> for Value

fn from(p: Properties) -> Self

Converts to this type from the input type.

impl From<Sample> for Value

fn from(s: Sample) -> Self

Converts to this type from the input type.

impl From<String> for Value

fn from(s: String) -> Self

Converts to this type from the input type.

impl From<Value> for Value

fn from(json: Value) -> Self

Converts to this type from the input type.

impl From<Vec<u8, Global>> for Value

fn from(buf: Vec<u8>) -> Self

Converts to this type from the input type.

impl From<ZBuf> for Value

fn from(buf: ZBuf) -> Self

Converts to this type from the input type.

impl From<f64> for Value

fn from(f: f64) -> Self

Converts to this type from the input type.

impl From<i64> for Value

fn from(i: i64) -> Self

Converts to this type from the input type.

impl<'a> TryFrom<&'a Value> for Cow<'a, [u8]>

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &'a Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for Properties

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for String

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for Value

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for Vec<u8>

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for ZBuf

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for f64

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<&Value> for i64

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for Properties

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for String

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for Value

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for Vec<u8>

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for ZBuf

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for f64

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for i64

type Error = ZError

The type returned in the event of a conversion error.

fn try_from(v: Value) -> Result<Self, Self::Error>

Performs the conversion.